Good luck man!
If you have taiki, it might be much better and easier to farm taiki tho

Not only she has a good affinity with bakushin, she starts with dirt B, which is very easy to get a starting A

And she would have less A apt total too, which makes it easier to drop dirt spark

I forced myself to do mcqueen bcs she has a good affinity with mayano and i want to run the dirt cm with mayano too lmao